Printing-press.



U. G. HARRIS. PRINTING PRESS. APPLICATION FILED 1330.31, 1906.

Patented; Oct. 27, 1908} r G. G. HARRIS.

PRINTING PRESS. APPLIOATION FILED DEC. 31, 1906.

Patented 001127, 1908.

2 SHEETS-SHEET 2 UNITED STATES PATENT OFFICE.

CHARLES GRANT HARRIS, OF NILES, OHIO, ASSIGNOR TO THE HARRIS AUTOMATIC PRESS COMPANY, OF NILES, OHIO, A CORPORATION OF OHIO.

PRINTING-PRESS.

Specification of Letters Patent.

Patented Oct. 27, 1908.

Application filed December 81, 1906. Serial No. 350,259.

To alt whom it may concern:

Be it known that I, CHARLES G. HARRIS, of Niles, in the county of Trumbull and State of Ohio, have invented certain new and useful Improvements in Printing'Presses; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to the form-calrving cylinder; 2 the transfer-.

make and use the same.

This invention relates to that class of prmtmg presses employing a transfer-surface for imparting to the stock the design The invention will be hereinafter fully set forth and particularly pointed 'out in the claims.

In the accompanying drawings, Figure 1 is an-end elevation showing the several cylinders of a printing press in operative rela tion. Fig.2. is an edge view with the gear of the transfer-cylindcr partly in section. Fig. 3 is a view similar to Fig. 1 showing the impression-0y]inder thrown off and the parts in position to disengage the transfercylinder from its gear. Fig. -.i shows the transfer-cylindcr and its gear disengaged.

Referring to the drawings. 1 designates cylinder having the usual rubber blanket 3: and 4 the imprcssion-cylinde-r. The latter is mounted in eccentric bearings I after the manner indicated by Letters Patent of the United States No. 577.105, such bearings being connected to a spring-actuated shal'tt normally restrained bya trip 7 which is aua tomatieally relea ed by a trip-arm S in the event of stock not being in position to prevent such trip-arm engaging the trip 7. as clearly pointed out in Letters Patent No. 6763241. The teed-rolls are conventionally indicated at 9 and are intended to impart to the stock an accelerated movement greater than the face speed of the impression-cylinder, as covered by Letters Pater's of the United States No. 577,299. The trip-arm 8 a is carried by the upper feed-rolls. By manually turning a shaft 10 the trip 7 may be disengaged from the shaft 6, an arm 12 of said shaft engaging and releasing said trip. The form-cylinder 1, the transfer-cylinder 2 and the impression'cylinder 4. carry constantly intermeshing gear-wheels, 13, 14 and 15, respectively, so that the-several. cylinders may be revolved in unison, power being applied from power-gear 16 to the gear of the impressioircylinder. It is contemplated by my invention that the transfer-cylinder shall be brought to a stop while the formand impression-cylinders may continue to rotate, and that the transfer-cylinder may be turned manually independently of the other cylinders. This may be accomplished in several ways, butv the means shown will serve as an illustration, the invention not being confined to any particular mechanism for accomplishing the desired result. According to the means shown the gear 14 is disengaged. from the transfer-cylinder so that while the latter will remain idle, the forn'i-cylinder may be rotated by the impression-cylinder, the gear 14 running as an idler. Fast on the shaft of the transfer-cylinder is a collar 17 on whose. hub the. gear 14 is loosely mounted, said gear being normally locked to the collar by a sliding bolt. 18, mounted on the gear, engaging a lug 19 fast on the end of the collar-hub. Acam-faQ-ed switch-lever20 when engaged by a pin 21 on the bolt 1.8 will withdraw the latter. thus allowing the transfercylinder to remain stationary. The switch-lever 20 is connected by a link 22 to a handle 23 on shaft (3, so that when said shaft tripped to throw off the impressioncylinder, the switch-lever is thrown into the path of travel of pin 21 and effects the withdrawal of bolt 18 from engagement with lug .19. Thus the transfer-cylinder is brought to a stop after the impressioncv nder-has been thrown off. Inasmuch as the'blanketsurface should extend not more than one-half of the circluntm'eiice of the transfer cylinder, the latter cannot be rotated b v friction with the form cylinder after its gear is unlocked, since such unlocking occurs just as the blanket passes out L: I r 901,964

the transfer-cylinder to revolve in unison' With the other cylinders. StopsQ i limit the movements of the switch-lever.

.The shaft of the transfer-cylinder is squared at one end'to permit of its being turned by a crank or other tool while disengaged from its gear, enabling access to be had to all points of the blanket and perimeter of the cylinder.

hen the transfencylinder is idle, the form-cylinder may be revolved, if desired, as when it is necessary or desirable to moisten the form plate or work up the ink before renewing the printing operation. This may be done by applying power to the impression'cylinder.

I claim as my invention 1. In a printing press having a form- 5 carrying member, a. transfer-member, and an nnpressioil-member. means for operating the three members by power applied to one i of them, and means for automatically bringing the transfer-member to rest, while the formwarrying member and nnpressronmenn 2 relative to the transfer-cylinder, and means her may continue to be operated.

2. In a printing press having a tornr carrying cylinder,a transfer-cylinder, and

the three cylinders by power applied to one of them, and means for automatically eaus- -an imprcssion-rylinder, means for operating I 4:. In a printing press having a formcarrying cylinder, a transfer-cylinder, and

' an impressioncylinder, means for uniformly opera-ting all of said cylinders, and means for automatically causing the transfer-cylinder to cease to rotate while the other cylinders remain in operation.

5. In a printing press having a formcarrying cylinder, a transfer-cylinder, and an impression-cylinder, intermeshing gearwheels carried by said cylinders, and means for automatically releasing the transfer- (ylinder from its gear to allow the latter to revolve in unison with the gears of the form cylinder and impression-cylinder while the transfer-cylinder is brought to rest.

6. In a printing press having a formcarrying cylinder, a transfer-cylinder, and an impression-cylinder. means for throwingotl the impression-cylinder relative to the transfencylinder, and means for causing the tmuster-cylinder to become idle relative to the form-cylinder and impression-cylinder.

7. In a printing press having a formcarrying cylinder, a transfer-cylinder, and an impression-cylinder, means for throwingott' the impression-cvlinder relative to the transfer-cylinder, and means actuated by such latter means for causing the transfercylinder to become idle relative to the formt-ylinder and impressioil-cylinder.

b. In a printing press having a formcarrying ry'linder, a transfer-cylinder, and an impression-cylinder, means for automati'ally throwingotl' the impression-cylinder for causing the transfer-cylinder to become idle relative to the formand' impressioncvlinders.

'9. In a printing press having a formcarrying cylinder, a transfer-cylinder, and

ing the trataster-cylinder to raise to rotate I while the t'orm-rarrying cylinder and nnto rotato'whilv the l'orm-rarrying cylinder:

an impression-0y]inder, means for automatically throwing-nit" the impression-cylinder relative to the -transfer-cyliiider, and means actuated by such latter means for causing the ll'illlfiftl'rCyllIldtl' to berome idle relative to the formand impressioil-cylinder.

In testimony whereof, I have signed this specification in the. presence of two subscribing witnesses.

(IIARLEH GRANT HARRIS.

\Yitnosses:

( G. lm'rvnann. llI'INHY A. loa'rlcn. 

